Bundesarchiv Bild 146-2008-0212, Uboot Hecht (S 171, ex U 2367).jpg
Postwar photo of Hecht (S 171), (former Type XXIII submarine U-2367). An identical sister ship of U-2324.
Nazi Germany
Name: U-2321
Ordered: 20 September 1943
Builder: Deutsche Werft, Hamburg
Yard number: 478
Laid down: 21 April 1944
Launched: 16 June 1944
Commissioned: 25 July 1944
Fate: Sunk as a target, 27 November 1945
General characteristics
Class and type: Type XXIII U-boat
  • 234 t (230 long tons) surfaced
  • 258 t (254 long tons) submerged
Length: 34.68 m (113 ft 9 in)
Beam: 3.02 m (9 ft 11 in)
Draft: 3.66 m (12 ft)
  • 1 × MWM RS134S 6-cylinder diesel engine, 575–630 metric horsepower (423–463 kW; 567–621 shp)
  • 1 × AEG GU4463-8 double-acting electric motor, 580 metric horsepower (427 kW; 572 shp)
  • 1 × BBC CCR188 electric creeping motor, 35 metric horsepower (26 kW; 35 shp)
  • 9.7 knots (18 km/h; 11 mph) surfaced
  • 12.5 knots (23 km/h; 14 mph) submerged
  • 2,600 nmi (4,800 km; 3,000 mi) at 8 knots (15 km/h; 9.2 mph) surfaced
  • 194 nmi (359 km; 223 mi) at 4 knots (7.4 km/h; 4.6 mph) submerged
Test depth: 180 m (590 ft)
Complement: 14–18
Service record
Part of:
  • Oblt.z.S. Hans-Heinrich Haß[1]
  • (25 July 1944 - February 1945)
  • Kptlt. Konstantin von Rappard[2]
  • (March - 9 May 1945)
  • 2 patrols;
  • 29 January–24 February 1945
  • 2 April–8 May 1945
Victories: 1 ship sunk for a total of 1,150 GRT

German submarine U-2324 was a highly advanced submarine built for Nazi Germany's Kriegsmarine in World War II. U-2324 was one of the last commissioned boats to undertake an operational patrol, and one of just three of her class to undergo two. During these patrols, she succeeded in sinking a single small British coastal freighter, one of just five ships sunk by this submarine class.

U-2321 was built as a Type XXIII submarine at Hamburg during the spring of 1944. As an early production of a new class of boats which utilised new technologies, she required a lengthy period of sea trials and training to best develop the boat's offensive capabilities. It was thus not until January 1945 that her captain, Hans-Heinrich Haas, was permitted to take her on a patrol off the Eastern coast of Scotland.


Like all Type XXIII U-boats, U-2324 had a displacement of 234 tonnes (230 long tons) when at the surface and 258 tonnes (254 long tons) while submerged. She had a total length of 34.68 m (113 ft 9 in) (o/a), a beam width of 3.02 m (9 ft 11 in) (o/a), and a draught depth of3.66 m (12 ft). The submarine was powered by one MWM six-cylinder RS134S diesel engine providing 575–630 metric horsepower (423–463 kilowatts; 567–621 shaft horsepower), one AEG GU4463-8 double-acting electric motor electric motor providing 580 PS (430 kW; 570 shp), and one BBC silent running CCR188 electric motor providing 35 PS (26 kW; 35 shp).[3]

The submarine had a maximum surface speed of 9.7 knots (18.0 km/h; 11.2 mph) and a submerged speed of 12.5 knots (23.2 km/h; 14.4 mph). When submerged, the boat could operate at 4 knots (7.4 km/h; 4.6 mph) for 194 nautical miles (359 km; 223 mi); when surfaced, she could travel 2,600 nautical miles (4,800 km; 3,000 mi) at 8 knots (15 km/h; 9.2 mph). U-2324 was fitted with two 53.3 cm (21 in) torpedo tubes in the bow. She could carry two preloaded torpedoes. The complement was 14–18 men.[3] This class of U-boat did not carry a deck gun.

Service history

The first patrol was unsuccessful, Allied precautions and counter-measures were effective enough to prevent her from successfully targeting even the small coastal vessels to be found in this area. She returned empty-handed, and Haas was replaced by Konstantin von Rappard, who now commanded her for the remainder of her service career.

The second patrol of U-2324 in April was more successful, with the SS Monarch being sunk. This 1,100 ton ship was torpedoed in a night attack on a coastal convoy, and was the only success of the boat during her operational career. U-2324 returned to Stavanger in May 1945 the day before the surrender. When Germany surrendered, U-2324 was at Stavanger in Norway, from where it sailed to Loch Ryan in Scotland for disposal in Operation Deadlight. Towed out to sea on the 27 November, the boat was destroyed as a naval gunnery target.

Summary of raiding history

Date Ship Nationality Tonnage (GRT) Fate
16 April 1945 Monarch  United Kingdom 1,150 Sunk


  1. ^ Helgason, Guðmundur. "Hans-Heinrich Haß". German U-boats of World War II - Uboat.net. Retrieved 27 April 2015.
  2. ^ Helgason, Guðmundur. "Konstantin von Rappard". German U-boats of World War II - Uboat.net. Retrieved 27 April 2015.
  3. ^ a b Gröner 1991, p. 89.


  • Busch, Rainer; Röll, Hans-Joachim (1999). German U-boat commanders of World War II : a biographical dictionary. Translated by Brooks, Geoffrey. London, Annapolis, Md: Greenhill Books, Naval Institute Press. ISBN 1-55750-186-6.
  • Busch, Rainer; Röll, Hans-Joachim (1999). Deutsche U-Boot-Verluste von September 1939 bis Mai 1945 [German U-boat losses from September 1939 to May 1945]. Der U-Boot-Krieg (in German). IV. Hamburg, Berlin, Bonn: Mittler. ISBN 3-8132-0514-2.
  • Gröner, Erich; Jung, Dieter; Maass, Martin (1991). U-boats and Mine Warfare Vessels. German Warships 1815–1945. 2. Translated by Thomas, Keith; Magowan, Rachel. London: Conway Maritime Press. ISBN 0-85177-593-4.
  • Sharpe, Peter (1998). U-Boat Fact File. Great Britain: Midland Publishing. ISBN 1-85780-072-9.

External links

  • Helgason, Guðmundur. "The Type XXIII boat U-2324". German U-boats of WWII - uboat.net. Retrieved 6 December 2014.